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whining fan

Discussion in 'Hardware' started by 700mb80min, Sep 9, 2003.

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  1. 700mb80min

    700mb80min Banned Thread Starter

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    I have a fan behind my power supply which is whining and actually stopping at times . Can this fan be disabled from inside the tower as it is behind the "box" and i cannot see it to unhook it. Maybe the supply has to be removed for access ?

    .......thanks 700mb80min
     
  2. mobo

    mobo

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    Yep...you gotta remove the power supply from the case to have access to the fan inside.
     
  3. 700mb80min

    700mb80min Banned Thread Starter

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    Any thing to look out for , as in electrocution ?:D Seems to be only a couple of screws and it`s off , but i know there`s more than that .
     
  4. mobo

    mobo

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    coulb be some stored energy so be careful and remember to unplug the supply :D then be sure to ground yourself against the case to prevent static charges which could leave you with bit more than bad fan.
     
  5. GwizJoe

    GwizJoe

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    ummmm...,nobody said this yet,so I will.

    If this is a fan that forces air thru your power-supply(blowing it in,or sucking it out),don't just disable it,replace it! Or,you won't have a power-supply for long.
    If the step-down transformer in your power-supply over-heats,your voltages could go whacko and you won't have much of a viable computer for long either.

    Fans are cheap...,replace it ASAP...,like TODAY! Before you start seeing the smoke roll out of it...
     
  6. Spyd

    Spyd

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    VERY IMPORTANT:

    NEVER, I repeat, NEVER open nor repair a power supply. They came with big condersers that can store lots of power even when unplugged.

    Power supplies are extremely cheap, and disconnecting the fan is a extremely bad idea (the fan is here because it has to be here).

    This warning extends to any CRT monitor or TV. These equipment can produce a mortal electric shock if manipulated inside.

    BOTTOM LINE: Replace the power supply.
     
  7. funkenbooty

    funkenbooty

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  8. JohnWill

    JohnWill Retired Moderator

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    The P/S isn't nearly as dangerous as suggested, and there's no significant issues in replacing the fan. I normally just hack the wires and splice them, since taking the circuit board out normally is a bit more work.

    Disconnecting the fan is a bad idea, I'll agree with that.

    Spyd, a CRT and a switching P/S are quite different. A CRT acts as a capacitor and can store a charge of many thousands of volts, and the principal danger is dropping it and having it implode. A properly designed switching P/S has bleed resistors and does not retain a charge after a few minutes. FWIW, I'm an EE and I've designed a number of switching power supplies, principally for aerospace applications.
     
  9. 700mb80min

    700mb80min Banned Thread Starter

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    Well i had a good look today , and the fan is indeed inside the power supply and not seperate as i had thought .I am not going to mess with it , just change the power supply.

    ...........thanks to all
     
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